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Dietary intake in patients with asthma: a case control study
Daniel Antonio de Luis1, Alicia Armentia, Rocio Aller
1Institute of Endocrinology and Nutrition, Medical School, and Hospital Rio Hortega, University of Valladolid, Valladolid, Spain. dadluis@yahoo.es
Nutrition (Burbank, Los Angeles County, Calif.)
|March 31, 2005
Summary
Asthma patients consume less vitamin A, C, and E. Omega-3 fatty acid intake positively correlates with lung function (FEV1) in asthmatics, suggesting a potential dietary link to asthma severity.
Area of Science:
- Nutritional Science
- Pulmonology
- Epidemiology
Background:
- Asthma is a chronic respiratory disease influenced by various factors, including environmental and dietary components.
- Understanding dietary patterns in asthma patients is crucial for developing targeted nutritional interventions.
Purpose of the Study:
- To compare dietary intake between individuals with asthma and healthy controls.
- To investigate the relationship between specific nutrient intakes and lung function in asthma patients.
Main Methods:
- A case-controlled study involving 54 asthma patients and 54 matched healthy controls.
- Dietary intake was assessed over 3 days, including a weekend day.
- Pulmonary function tests, specifically forced expiratory volume in 1 second (FEV1), were conducted on asthma patients.
Main Results:
- Asthma patients exhibited significantly lower intake of vitamin A, vitamin C, and vitamin E compared to healthy controls.
- A positive correlation was observed between omega-3 fatty acid intake and FEV1 in asthma patients.
- Multivariate analysis confirmed vitamin C and omega-3 fatty acids as significant predictors of FEV1.
Conclusions:
- Asthma patients demonstrate reduced intake of key vitamins (A, C, E) compared to non-asthmatic individuals.
- Omega-3 fatty acid consumption is positively associated with improved lung function in asthma.
- Dietary modifications, particularly increasing omega-3 fatty acids, may play a role in managing asthma.